if引导条件状语从句时,在条件状语从句中要用一般时表示将来时,而主句可以是三种情况.1.主句可以是一般将来时.如：If he comes, I will let him go into your office.2.主句也可以是情态动词+动词原形.如：If he comes, you can tell him this.3.主句也可以是祈使句.如：If he comes, let him go into my office.宾语从句时态练习题1. Catherine said that she _ to Guangzhou.A. has never gone B. had never gone C. has never been D. had never been2. The students want to know whether they_ discussion(讨论) today. A. had B. has C. will have D. are3. She asked Linda if_ go an
